24小时热门版块排行榜    

北京石油化工学院2025年硕士研究生招生接受调剂公告
查看: 4758  |  回复: 92
【奖励】 本帖被评价78次,作者bingan727增加金币 61.6

bingan727

木虫 (正式写手)


[资源] 石墨烯和单层MoS2微观机械性能测试(Science,Nano Letter和ACS Nano)

第一篇文章是2008年Science上利用原子力显微镜测试石墨烯的机械性能。
------------------
We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The force-displacement behavior is interpreted within a framework of nonlinear elastic stress-strain response, and yields second- and third-order elastic stiffnesses of 340 newtons per meter (N m−1) and −690 N m−1,respectively. The breaking strength is 42 N m−1 and represents the intrinsic strength of a defect-free sheet. These quantities correspond to a Young’s modulus of E = 1.0 terapascals, third-order elastic stiffness of D = –2.0 terapascals, and intrinsic strength of sint = 130 gigapascals for bulk graphite. These experiments establish graphene as the strongest material ever measured, and show that atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.
-------------------


第二篇文章是加州理工大学的Mingyuan Huang博士在Julia R. Greer教授指导下利用原位纳米压痕技术对石墨烯的电机耦合性能的研究。
-----------------------------
We present the in situ nanoindentation experiments performed on suspended graphene devices to introduce homogeneous tensile strain, while simultaneously carrying out electrical measurements.We find that the electrical resistance shows only a marginal change even under severe strain, and the electronic transport measurement confirms that there is no band gap opening for graphene under
moderate uniform strain, which is consistent with our results from the first-principles informed molecular dynamics simulation.
石墨烯电机耦合性能
--------------------------------
第三篇文章是瑞士一个课题组报道了他们利用原子力显微镜(AFM)对单层MoS2的机械性能展开的研究。
--------------------------------
We report on measurements of the stiffness and breaking strength of monolayer MoS2, a new semiconducting analogue of graphene. Single and bilayer MoS2 is exfoliated from bulk and transferred to a substrate containing an array of microfabricated circular holes. The resulting suspended, free-standing membranes are deformed and eventually broken using an atomic force microscope. We find that the in-plane stiffness of monolayer MoS2 is 180 ( 60 Nm1, corresponding to an effective Young's modulus of 270(100 GPa, which is comparable to that of steel. Breaking occurs at an effective strain between 6 and 11% with the average breaking strength of 15(3 Nm1 (23 GPa). The strength of strongest monolayer membranes is 11% of its Young's modulus, corresponding to the upper theoretical limit which indicates that the material can be highly crystalline and almost defect-free. Our results show that monolayer MoS2 could be suitable for a variety of applications such as reinforcing elements in composites and for fabrication of flexible electronic devices.
------------------------------


单层MoS2机械性能测试[ Last edited by bingan727 on 2012-1-6 at 01:29 ]
回复此楼

» 本帖附件资源列表

» 收录本帖的淘帖专辑推荐

Nano&Micro 石墨烯+MoS2等 二维材料 nano physics&chem 矿物加工
介孔+微纳米材料+DFT计算+热门资源 矿物加工工程 新技术 Nature
科研啊 努力啊 希望有用啊 Science 化学教材 GS文献
石墨烯_小木虫20120421

» 猜你喜欢

» 本主题相关商家推荐: (我也要在这里推广)

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

iniestacong

金虫 (初入文坛)


★★★★★ 五星级,优秀推荐

楼主做的漂亮!
43楼2012-12-06 21:04:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
wtiger2楼
2012-01-06 12:27   回复  
五星好评  顶一下,感谢分享!
2012-01-06 14:50   回复  
五星好评  顶一下,感谢分享!
caoge4楼
2012-01-06 15:20   回复  
五星好评  顶一下,感谢分享!
归兰居5楼
2012-01-06 16:00   回复  
五星好评  顶一下,感谢分享!
lsk_06楼
2012-01-06 19:59   回复  
三星好评  顶一下,感谢分享!
lsk_07楼
2012-01-06 19:59   回复  
顶一下,感谢分享!
lsk_08楼
2012-01-06 20:00   回复  
顶一下,感谢分享!
weijunqqq9楼
2012-01-06 20:54   回复  
五星好评  顶一下,感谢分享!
麦客00110楼
2012-01-07 01:04   回复  
五星好评  顶一下,感谢分享!
lizhaolong11楼
2012-01-07 07:59   回复  
五星好评  顶一下,感谢分享!
lizhaolong12楼
2012-01-07 07:59   回复  
顶一下,感谢分享!
lizhaolong13楼
2012-01-07 08:00   回复  
顶一下,感谢分享!
fmbs11014楼
2012-01-07 10:08   回复  
五星好评  顶一下,感谢分享!
fmbs11015楼
2012-01-07 10:08   回复  
顶一下,感谢分享!
fmbs11016楼
2012-01-07 10:09   回复  
顶一下,感谢分享!
wsz915017楼
2012-01-07 10:34   回复  
五星好评  顶一下,感谢分享!
missu00118楼
2012-01-07 12:17   回复  
五星好评  顶一下,感谢分享!
yuan99919楼
2012-01-07 15:37   回复  
五星好评  顶一下,感谢分享!
fanxinql20楼
2012-01-07 16:08   回复  
五星好评  顶一下,感谢分享!
fanxinql21楼
2012-01-07 16:08   回复  
顶一下,感谢分享!
fanxinql22楼
2012-01-07 16:08   回复  
顶一下,感谢分享!
tomcobra23楼
2012-01-07 20:28   回复  
五星好评  顶一下,感谢分享!
redjinjie24楼
2012-01-07 21:50   回复  
三星好评  顶一下,感谢分享!
2012-01-07 22:57   回复  
五星好评  顶一下,感谢分享!
gengxin6026楼
2012-01-07 23:18   回复  
五星好评  顶一下,感谢分享!
gengxin6027楼
2012-01-07 23:18   回复  
顶一下,感谢分享!
gengxin6028楼
2012-01-07 23:19   回复  
顶一下,感谢分享!
2012-01-08 10:33   回复  
五星好评  顶一下,感谢分享!
=虫虫=30楼
2012-02-13 19:45   回复  
五星好评  顶一下,感谢分享!
shareall31楼
2012-03-31 21:55   回复  
五星好评  顶一下,感谢分享!
zjtgg00732楼
2012-04-05 09:18   回复  
五星好评  顶一下,感谢分享!
xueholly33楼
2012-04-09 10:31   回复  
五星好评  顶一下,感谢分享!
2012-04-17 22:11   回复  
五星好评  顶一下,感谢分享!
2012-04-17 22:14   回复  
sgyw12336楼
2012-05-25 09:50   回复  
五星好评  顶一下,感谢分享!
jilin120637楼
2012-06-02 09:00   回复  
五星好评  顶一下,感谢分享!
2012-06-28 16:18   回复  
五星好评  顶一下,感谢分享!
zhxq102439楼
2012-07-10 14:53   回复  
三星好评  
ghh200440楼
2012-11-30 08:46   回复  
三星好评  顶一下,感谢分享!
gemucai41楼
2012-11-30 08:53   回复  
五星好评  顶一下,感谢分享!
王家寨42楼
2012-12-02 22:31   回复  
五星好评  顶一下,感谢分享!
2012-12-24 15:31   回复  
五星好评  顶一下,感谢分享!
2013-01-08 22:03   回复  
五星好评  顶一下,感谢分享!
yoyuplus46楼
2013-01-11 14:32   回复  
五星好评  顶一下,感谢分享!
2013-02-26 12:13   回复  
五星好评  顶一下,感谢分享!
wangli3248楼
2013-03-02 19:27   回复  
五星好评  顶一下,感谢分享!
wummm201249楼
2013-03-12 10:28   回复  
五星好评  顶一下,感谢分享!
2013-03-12 16:19   回复  
五星好评  顶一下,感谢分享!
相关版块跳转 我要订阅楼主 bingan727 的主题更新
☆ 无星级 ★ 一星级 ★★★ 三星级 ★★★★★ 五星级
普通表情 高级回复(可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 接收矿产普查与勘探和资源与环境专业调剂生 +7 geo222 2025-03-30 7/350 2025-03-30 15:55 by lyyqaz
[考研] 材料与化工(085600)材料相关想找一个本专业调剂 +13 蓝岸阿里 2025-03-29 14/700 2025-03-30 14:39 by 灵果瓶子
[考研] 311求调剂 +7 小张真的想读研 2025-03-28 7/350 2025-03-30 14:27 by happy@9
[考研] 299求调剂 +3 无涯163 2025-03-30 3/150 2025-03-30 09:05 by 娄娄虫
[考研] 一志愿081700化学工程与技术求调剂 +6 Cream08881 2025-03-29 7/350 2025-03-30 08:12 by panzt
[考研] 一志愿湖南大学材料与化工调剂336分 5+4 张天傲121 2025-03-27 9/450 2025-03-30 07:39 by microscopy
[考研] 0703化学求调剂 +13 如约而至07 2025-03-28 13/650 2025-03-29 20:46 by kicokico23
[考研] 能动方向找调剂 +4 能动找调剂 2025-03-23 5/250 2025-03-29 18:17 by 能动找调剂
[考研] 材料科学与工程学硕290求调剂 +4 洲洲洲zzzz 2025-03-29 5/250 2025-03-29 18:03 by wxiongid
[考研] 260求调剂 +9 但忘不妨 2025-03-24 12/600 2025-03-29 16:20 by 276027182
[考研] 调剂 +8 tian雨森 2025-03-27 12/600 2025-03-29 16:09 by 276027182
[考研] 298求调剂 +4 2660990805 2025-03-26 6/300 2025-03-29 14:53 by 上岸!上岸!!�
[考研] 调挤 +4 0856开头 2025-03-28 4/200 2025-03-28 22:42 by 阳光向上666
[考研] 工科294调剂 +3 siege123 2025-03-28 3/150 2025-03-28 22:33 by 褚迎松小小
[考研] 315理学化学求调剂 +4 yyy鱼雨 2025-03-24 7/350 2025-03-28 17:12 by zhouxiaoyu
[基金申请] 青年基金里面预期研究成果部分漏写了 +14 kaola123555 2025-03-27 31/1550 2025-03-28 16:30 by 科研自由
[考研] 085404 293分 希望调剂到材料相关专业 +3 Fizzes 2025-03-28 5/250 2025-03-28 16:06 by Fizzes
[考研] 085702安全工程求调剂 +3 鲁!! 2025-03-26 5/250 2025-03-28 00:37 by 鲁!!
[硕博家园] 武理校内有老师招工科调剂吗 +4 夏沫浅雨12138 2025-03-23 6/300 2025-03-26 21:11 by zhyangzhang
[考研] 085601材料工程总分315求调剂 +3 高123147 2025-03-26 4/200 2025-03-26 19:49 by 随风而动咦
信息提示
请填处理意见
复试调剂复试调剂
复试调剂二维码获取复试 & 调剂指南!微信扫一扫
商务合作商务合作
商务合作二维码商务合作咨询微信扫一扫(备注:商务合作)
学术干货学术干货
学术干货二维码微信扫一扫了解最新学术干货
论文辅导论文辅导
论文辅导二维码微信扫一扫添加老师,免费咨询
师资招募师资招募